mendacious vs phony as a three-dollar bill

mendacious

adj

  • Lying, untruthful or dishonest. 

  • False or untrue. 

phony as a three-dollar bill

adj

  • Extremely phony; fake; dishonest; completely bogus. 

How often have the words mendacious and phony as a three-dollar bill occurred in a corpus of books? (source: Google Ngram Viewer )